package chapter05.E04;

public class E04 {
    public static void main(String[] args) {
        String s ="itcast";
        System.out.println("将it替换成cn.it的结果:"+s.replace("it","cn.it"));
        String s1 = "i t c a s t";
        System.out.println("去除字符窜两端空格的结果:"+ s1.trim());
        System.out.println("去除字符窜中所有空格后的结果:"+ s1.trim());
    }
}
